I've had Vonage for over a year. For some reason now almost all of my incoming calls go nearly immediately to Vonage Voicemail. Note I have simultaneous ring with my mobile phone (which has been set up for 1 year) and 40 seconds for no-answer to Voicemail. Any ideas? This is very irritating.

This is a long shot, but any chance your cell is call forwarded to Vonage, so when someone calls Vonage the cell picks up because of simulring, forwards to Vonage, but it's still busy with the same call so it goes to voicemail?